The problem is that Ziobro was already doing this (illegally wiretapping opposition) together with Kamiński and Kaczyński when they were in power in 00s. They lost power, almost got to jail but avoided it thanks to political calculation of the next party (that used them as "look at least we aren't like them" threat), then they got elected again anyway in 2015.
They have majority support right now because of social spending and their supporters don't care about rule of law, corruption, any of that. There were already dozens of similar-scale scandals since 2015. Nobody cares. It's frustrating, really.